What’s the answer to this pls

The ability to taste the chemical PTC is determined by a single gene in humans with the ability to taste given by the dominant allele T and the inability to taste by the recessive allele t. Suppose two heterozygous tasters (Tt) have a large family. What is the likelihood that their first child will be a taster

why are plastids called kitchen of the cell​

List 3 ways that microwaves are beneficial to society

18. Marlon took the microscope and observed a sliced plant leat. He switched it into 100% magnification and saw
a green pigment. In which part of the plant cellis it found?
a nucleus b. mitochondrion G chloroplast d. lysosome​

Which of the following rows in the table best compares the function of a plant's xylem and phloem? I Need help ASAP!

Row 1

Xylem

- transports glucose absorbed by the roots to the rest of the plant


- alive at maturity

Phloem

- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant


- dead at maturity


Row 2

Xylem

- transports glucose produced by photosynthesis in the leaves to the rest of the plant


- dead at maturity

Phloem

- transports water and nutrients absorbed by the roots to the rest of the plant


- alive at maturity


Row 3

Xylem

- transports water and nutrients absorbed by the roots to the rest of the plant


- dead at maturity

Phloem

- transports glucose made during photosynthesis in the leaves to the rest of the plant


- alive at maturity


Row 4

Xylem

- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant


- alive at maturity

Phloem

- transports glucose absorbed by the roots to the rest of the plant


- dead at maturity

(L1) The plasma membrane of a cell is selectively permeable (or semi-permeable), which means it
A.controls all cellular activities.


B.is responsible for asexual reproduction.
C.allows some materials to pass.

D.has a carbohydrate foundation,

A student prepares a cell homogenate from spinach leaves. She performs a cell fractionation experiment to determine the shortest amount time of centrifugation at 2000xg that will yield the highest percentage of chloroplasts in the pellet fraction. She splits the spinach homogenate into 5 equal parts and centrifuges the parts at 2000xg for 0, 5, 10, 15 or 20 min. She then determines the proportion of chloroplasts in the supernatant and pellet fractions. The controlled variable(s) in the student's experiment is/are:_____.
a. proportion of chloroplasts in each fraction.
b. use of same plant homogenate throughout.
c. time of centrifugation in minutes.
d. g-force of centrifugation.

Question 10
6.7 pts
Which of the following most likely happens in the cells of a person running a
marathon?
The respiration rate increases to produce more ATP.
The cell division rate increases to produce more muscle fibers
The photosynthesis rate increases to produce more sugars
The replication rate increases to produce more DNA

Which statement correctly describes an interaction between organelles in the model?
A
Letter U and letter S control the collection and release of waste from the cell.
В.
Letter T and letter R store the genetic material necessary for replication of the cell.
ОООО
C
Letter Q and letter S are responsible for creating and delivering nutrients throughout the cell.
D
Letter U and letter R are involved with the processes of transcription and translation for the cell.

Leona drew a diagram to compare ginkgoes and conifers.



Which characteristic belongs in the area marked X?

are deciduous
produce cones
look like palm trees
are the largest group

5.Write observation and conclusion of each of the following activities​

A Phylum is a more broad taxonomic category than an order.
O True
O False

Select the correct answer.
Why will a decrease in pH of the stomach affect protein digestion?
OA. Decrease in pH of the stomach will distort the structure of peptides in food, which affects the action of the enzyme pepsin.
O B. Decrease in pH of the stomach will distort the active site of the enzyme pepsin, which affects its
action.
O C. Decrease in DH of the stomach will distort the active site of the enzyme lipase, which affects protein digestion. Yes

We’re you able to place some events within the periodic table with just a single clue

Darwin noticed that animals on the different islands of the Galapagos appeared to be adapted
to what? *
(10 Points)
O A. differences in their food
O B. differences in their predators
O C. differences in their altitude
D. differences in temperature
WILL GIVE BRAINLIST