I NEED HELP PLEASE A BIOLOGY QUESTION !!! I have to turn it in now please help !!!

Reflecting telescopes use mirrors as well as lenses.
Please select the best answer from the choices provided
T
F

Adaptation is a change in a species over many generations. What is the cause of this change?

A.
The environment changes over time.

B.
Species pick traits they like.

C.
Over time, species become more like their ancestors.

​

Select all that apply.
Which of the following statements are true?
A purebred organism can either be TT or tt.
The combination of two genes determines the genetic trait of an organism.
Recessive genes will sometimes be masked by dominant genes.
It is possible for two genetically different plants to have the same phenotype.

Help Please. Is 15 points fair for 5 questions?

Please help, I’m confused and have little time!

1. How does your DNA differ from other peoples?how is it similar

2.How does your DNA differ from a strawberries DNA? How is it similar

Urea diffused in all regions of the filter during countercurrent flow. Using what you know about the sizes of urea and potassium, which graph shows what would happen to potassium during countercurrent flow?

16.Which type of sediments would be most common where a river meets an ocean?
A. biogenous
B. cosmogenous
C. hydrogenous
D. lithogenous

when would anaerobic respiration be used instead of anaerobic respiration?​

(b)
The image below shows part of the surface of a leaf.
0.1 mm x 0.1 mm
The length and width of this piece of leaf surface are both 0.1 mm

Calculate the number of stomata per mm of this leaf surface.

Does this satisfy the octet rule why or why not

Replicate the following DNA sequence: TTA

I was wondering if my answer was right ?

how do hot objects preduce heat

Which of the following parts of the plant facilitates photosynthesis?

vascular tissue
chloroplast
roots
stoma

PLEASE HELP I NEED TO GET THIS QUESTION RIGHT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A flask filled with water and organic molecules was left open to the air for an hour and then was tightly stoppered. After being allowed to sit for a week, the flask was reopened and checked for living organisms. Only anaerobic bacteria were found living in it. Which of the following can be assumed about the conditions within the flask during the week it sat tightly stoppered? (4 points)


Group of answer choices


There were carbon-based gases in the water.


There was abundant oxygen in the flask.


There was no oxygen in the flask.


Sunlight must have entered the water.

PLEASE HELP I WILL GIVE BRAINALIST AND EXTRA POINTS

Which of the following describes Mendel's law of segregation?

During DNA replication, the alleles separate into haploid daughter cells

Alleles of a trait can never be separated from each other.

During meiosis, the two alleles for a trait separate into different gametes


During meiosis, two alleles that were separated come back together

The conditions for an enzyme to work need to be?

In humans, Brown eyes (B) is dominant to blue eyes (b). A hom ozygous brown-eyed man marries a blue-eyed woman. What are the genotypic and phenotypic ratios of their children’s eye color?

Genotype: __________________________________
Phenotype: __________________________________

The Yersinia pestis bacteria cause what disease?
O Hantavirus
O Rabies
Plague
Ringworm

how do you know that individual 1 is heterozygous for the trait

i need help asap pls help

Heredity is the way animals and plants pass traits on to their offspring. True False

Dr. Sanchez and her team have observed an unusual star in the Andromeda galaxy. Their data suggests that the star is being consumed by a nearby black hole. They write a scientific paper about their work and submit it to a scientific journal. Other scientists read their paper and look for the unusual star as well. The other scientists are participating in which activity?

For this cell division, you can see that 4 daughter cells are made that have half the genetic information as the original. What type of cell division is this?

a) Diffusion
b) Mitosis
c) Meiosis
d) Photosynthesis​

Which best describes the relationship between digestion and cellular respiration? O A. Digestion breaks foods down to simple sugar molecules, and respiration uses the sugar molecules to produce energy. O B. Digestion creates nutrients from food particles, and respiration uses the nutrients to produce energy. O C. Digestion releases oxygen molecules from food, and respiration uses oxygen molecules to produce energy. D. Digestion produces waste materials, and respiration uses the waste materials to produce energy.​

Which does not require a moist environment for reproduction?
fern
moss
conifer

Plz helppp is that answer RIGHT

1. Which of the following are carcinogens (risk factors that are known to cause cancer)? a. harmful chemicals
b. genetic factors
c. excessive exposure to UV rays
d. all of the above
e. none of the above

A section of a topographic map is shown below.



What is the difference in elevation in meters between Point X and Point Y on the map?