plz help me on science due today

Answer:

The second one and the third

Explanation:

Answer:

1. Epiphyllous is anything that is growing on the surface of the leaf or get attached to it of any other plant. ... In this, the stamen gets attached to the part of the flower of some other plant as an adhesion of stamen. Explanation: In other words, Epiphyllous stamen are the Filaments fused with tepals.

2. In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen. Staminodes are frequently inconspicuous and stamen-like, usually occurring at the inner whorl of the flower, but are also sometimes long enough to protrude from the corolla.

Explanation:

pls mark me brainless

High CO2 levels cause plants to thicken their leave ,which could worsen climate change effect researchers says.

plant scientists observed that when CO2 levels increase in the atmosphere most plants do unusual , they thicker their leave

germination increase in high temperature up to the point

Increased CO2 levels and temperatures affect plant growth by bringing about a corresponding increase.

This the process in which plants manufacture their food through the presence of sunlight.

other compounds such as CO2 and water are used which is why increase in the CO2 levels and temperatures will increase the growth of plants.

Read more about Photosynthesis here https://brainly.com/question/19160081

Answer:

The correct answer is -

A. genotype ration = 1/1 or 100% of Aa.

B. phenotype = all smooth-seeded.

Explanation:

According to the question, in this experiment, the smooth seed is the dominant trait over the wrinkled seed. The wrinkled seed is recessive, therefore, represented by aa and dominant is represented by AA

gametes: A and A from smooth seeded parent and a and a from the wrinkled-seeded parent.

Punnett square:

       A          A

a      Aa       Aa

a      Aa       Aa

In this cross of F1 generation, all the offsprings are Aa in genotype 4/4 or 1/1 or 100 percent chances.

And phenotypically 100% chances of the smooth seed plants.

Answer: cells, tissues, organ, and body system.

HOPE THIS HELPS AND PLEASE BRAINLIEST

Answer:

It occurs because of the difference in temperature between the ocean and the land.  

This happens because the land heats up faster than the water, causing the air to rise above the land and allowing cooler air from the ocean to move in and take its place.

Because land and water have different capacities for holding heat, the land will heat up more quickly than the water on a hot day near the ocean. As a direct consequence of this, the air that floats above land tends to become warmer and less dense than the air that floats above water. Because of this, a region of low pressure is created over the land, while a region of high pressure is created over the water. In order to maintain a natural equilibrium, air will always move from areas of higher pressure to areas of lower pressure.

A breeze or wind that blows from the water to the land is caused by the air that is cooler and denser over the water moving towards the air that is warmer and less dense over the land. This phenomenon, which is referred to as a sea breeze, can assist in moderating temperatures on land, thereby making it feel more bearable and pleasant to be there.

Learn more about sea breeze, here:

https://brainly.com/question/13015619

#SPJ6

Answer:

Not really sure about this question but what I think is,

So for example, metal..Metal has a very low specific heat capacity, but we use it pretty much in all our lifetime right? Things that have low heat capacity have very high capacity if that makes sense. Things like water and oil, they take more energy to get heat up or get hot. Its funny because its what makes our planet survivable. 70% of our planet is of course water and radiation (light and heat) from the sun strikes 70% of water. Meaning its not heating anything up so quickly. Hope this somewhat helps you out and gives you an idea on what the question is talking about :) Enjoy!

Explanation:

Answer:bsna

Explanation:

Answer:

it's either be or see because it's more soluble with water the sense the Arctic Ocean is you know near the Arctic which would be like more North Pole and it be really cold and Frozen it's more contact with just normal water so I'm pretty sure the North Atlantic Ocean so c

Answer:

C. Calcium (CA)

Explanation:

other Alkaline Earth metals in period 4 are, beryllium (Be), magnesium (Mg), strontium (Sr), barium (Ba), and radium (Ra)

Answer:

calcium is part of the alkaline earth metals family

Answer:

c

Explanation:

it uses percentages, like 50% Aa, 25% aa and 25% AA

Explanation:

hope it is helpful to you

Answer:

1. Large intestine

2. Skin

3. Liver

4. Lungs

5. Kidney

Explanation:

Bc I said so

Answer:

Ozone molecules in the stratosphere are constantly being produced and destroyed by different types of UV radiation from the sun. ... However, scientists have discovered that certain chemicals react with UV radiation in the stratosphere, which causes them to break apart and release chlorine or bromine atoms.

Explanation:

Answer:

A reflex action

Explanation:

Answer:

The information could trigger an immediate behavior.  The information could be sent back to the receptor cells.

Explanation:

Brainiest please :D

Answer:

Natural Selection & Fitness

Explanation:

Horses have evolved to run as fast as possible because they are prey animals.

The hooves give advantages to the predecessors to the modern horse rather than the foot-bearing horses.

Thus when somebody inevitably becomes a snack, the hoof bearing horses lived longer. (Natural selection)

Because they've lived longer, they've had more babies. (Fitness)

Their babies are more likely to pass on the genes they've inherited from their successful parents, and the population of hooved-horses begins to exceed the population of footed-horses.

In this circumstance, all the footed-horses are gone. The population has evolved.

Hope this helps <3

PS: here's a source! https://www.amnh.org/exhibitions/horse/the-evolution-of-horses/on-your-toes#:~:text=Hooves%20and%20long%20legs%20help,many%20horses%20retained%20three%20toes.

Answer:

B.The clownfish living in a sea anemone

Explanation:

It's a relationship between two organisms where one benefits and the other gains neither harm nor benefit

Answer:

D. Moss growing higher on a tree to gain nutrients and sunlight.

Explanation:

I just had this question.

Answer:

Looking at the sky during night is always an amazing scene. It takes our breath away, every time when we see the night sky with countless stars twinkling, full moon and planets. I always wished I reach those far planets travelling in space. The only way I can fulfill my dream is to become an astronaut. Astronaut is a person who is trained to travel in a spaceship to go to outer space. If I were an astronaut, I wish my first mission will be to the moon. However, I will have to undergo a very strict training to survive in space We all have seen the training videos of astronauts in DISCOVERY channel where they even undergo underwater training. Life in space will be different with zero gravity and so we will experience zero weight and will float freely. Wow!!!! that seems to be an exciting thing. But how we will eat and drink?

Explanation:

if you want to imagine about space

first of all you need to clear your mind

and you need to concentrate your mind on the space and imagine .if you are not getting anything then drink some water and repeat the same process . I hope you will be successful to imagine space ..

best of luck

Answer:

Request a refund for recent purchases · It's less than 48 hours since you bought an app or made an in-app purchase,

Answer:

D. several million years

Explanation:

find the velocity of the spacecraft:

6 ÷ 2 = 3 AU per year

the time for the spacecraft to travel to Wolf 359:

492,000,000 ÷ 3 = 164,000,000 = several million years

Answer:

Variation occurs in species with the genes resulting in the traits and physical characteristics that make it possible for them to be among the fittest for a number of reasons:

1. Mutation

2. Recombination and

3. Migration

Explanation:

Mutations:  A mutation is a deviation from the norm in a DNA sequence. It can be stimulated by errors during the DNA replication process which happens as the cell is dividing, or by exposure to ionizing radiation, chemicals, or viral infection (whether artificial or natural).

It is noteworthy that naturally, without any human intervention, the possibility of a spontaneous mutation is very low.

Recombination: This refers to the creation of new fusion of genes in the offspring that did not occur in the parents by the processes of crossing-over and independent assortment. Independent assortment meaning that the allele the gamete received for one gene was not influenced by the allele received for another gene.

Migration: Variation by migration here refers to the introduction of new genes from into one population by another. This could happen when a new population arrives at an existing one or when an existing one migrates to another population.

We can say for example that, genes from Americans have “migrated” into the population of African origin in America given the continuous immigration of Africans into America.

So in both populations, there are very fit species, but when their genes are mixed during cross-reproduction, variation arises.

Cheers

Answer:

The order they go is (from left to right)

Organ system, Organism, Organ, Cell

Explanation:

A organism is made of multiple organ systems like humans (respiratory system, cardiovascular system, etc.)

A organ system has multiple organs like veins, heart, etc.

A organ is made of lots of cells

A cell is the unit of life.

Answer:

The next male honey bee to mate with the queen will remove the previous endophallus and eventually lose his own after ejaculation. Male honey bees are only able to mate seven to 10 times during a mating flight, and after mating, a drone dies quickly, as his abdomen rips open when his endophallus is removed

Answer:

I don’t know

Explanation:

At all

Answer:

I think option B is right answer

Answer:

B) Image 1 -> Image 3 -> Image 4 -> Image 2

Explanation:

The pictures of the ecosystems are needed to be put into the simplest -> complex order.

Image 1 could be the simplest as it only has one organism.

Image 3 would be the next simplest as it has only a group of the same organism.

Image 4 would come next as it has aqua life and surroundings but the same fishes!

Image 2 would be the most complex, as it has various biodiversity and surroundings!

The order would go as Image 1 -> Image 3 -> Image 4 -> Image 2.

Answer:

e

Explanation:

It worsens the quality of the soil

Answer:

As an embryo develops, identical cells give rise to specialized cells that perform different functions.

Explanation:

As an embryo develops, the cells divide, giving new ones. As the cells grow and continue to reproduce themselves, they differentiate, becoming specialized cells. These cells will be located in a particular part of the embryo and will perform a specific function. The shape, size, and organelles vary according to their role.

Answer:

the troposphere contains three-quarters of the mass of the entire atmosphere. The air here is 78% nitrogen and 21% oxygen. The last 1% is made of argon, water vapor, and carbon dioxide.

Explanation:

Explanation:

The exoskeleton and molting

The success of arthropods derives in large part from the evolution of their unique, nonliving, organic, jointed exoskeleton (see figure), which not only functions in support but also provides protection and, with the muscle system, contributes to efficient locomotion. The exoskeleton is composed of a thin, outer protein layer, the epicuticle, and a thick, inner, chitin–protein layer, the procuticle. In most terrestrial arthropods, such as insects and spiders, the epicuticle contains waxes that aid in reducing evaporative water loss. The procuticle consists of an outer exocuticle and an inner endocuticle. In the exocuticle there is cross-bonding of the chitin–protein chains (tanning), which provides additional strength to the skeletal material. The hardness of various parts of the exoskeleton in different arthropods is related to the thickness and degree of tanning of the exocuticle. In crustaceans, additional rigidity is achieved by having the exoskeleton impregnated with varying amounts of calcium carbonate.

arthropod integument

arthropod integument

Diagrammatic section through the arthropod integument.

Encyclopædia Britannica, Inc.

The formation of an exoskeleton required the simultaneous solution of two functional problems in the evolution of arthropods: If the animal is encased in a rigid covering, how can it grow and how can it move? The problem of growth is solved in arthropods by molting, or ecdysis, the periodic shedding of the old exoskeleton. The underlying cells release enzymes that digest the base of the old exoskeleton (much of the endocuticle) and then secrete a new exoskeleton beneath the old one. At the time of actual shedding, the old skeleton splits along specific lines characteristic of the group, and the animal pulls out of the old skeleton as from a suit of clothes. The old skeleton is usually abandoned but in some species is eaten. The new exoskeleton, which is soft and flexible, is then stretched by localized, elevated blood pressure augmented by the intake of water or air. Hardening occurs by stretching and especially by tanning within a number of hours of molting. In crustaceans, calcium carbonate is deposited into the new procuticle. (Soft-shell crabs are simply newly molted crabs.) Additional endocuticle may be added to the exoskeleton for some days or weeks following molting.

molting

molting

Grasshopper shedding its exoskeleton.

© Cathy Keifer/Dreamstime.com

Molting is under hormonal control, and there is a long preparatory phase that precedes the process. The steroid hormone ecdysone, secreted by specific endocrine centres and circulated in the blood, is the direct initiator of molting. The actual timing of a molt, however, is regulated by other hormones and commonly by environmental factors. The interval between molts is called an instar. Because of the frequency of molts, instars are short early in life but grow longer with increasing age. Some arthropods, such as most spiders and insects, stop molting when they reach sexual maturity; others, like lobsters and crabs, molt throughout their lives. Most of the larger spiders of temperate regions, for example, molt about 10 times before reaching sexual maturity. As a result of molting, the length and volume of an arthropod display steplike increases over the life span, but internal tissue growth is continual as in other animals.

Loss of a limb is a common hazard in the life of many arthropods. Indeed, some arthropods, such as crabs, are capable of amputating an appendage if it is seized by a predator. The limb is then regenerated from a small, nipplelike rudiment formed at the site of the lost limb. The new limb develops beneath the old exoskeleton during the premolt period and then appears when the animal molts.

Answer:

Three layers

Explanation:

Outer= Composed of proteins and lipids. Repels water and prevents desiccation in terrestrial places.

Middler=Provides primary protection

Inner=Flexibke at joints, muscles attach here.

Answer:

DNA cannot leave the nucleus because that would risk it getting damaged.

Answer: G. Horses slowly developed over time

Explanation: