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Allisa [31]
2 years ago
11

In the kidneys, the countercurrent mechanism involves the interaction between the flow of filtrate through the nephron loop of t

he juxtamedullary nephrons (the countercurrent multiplier) and the flow of blood through the limbs of adjacent blood vessels (the countercurrent exchange
a. True
b. False
Biology
1 answer:
Lostsunrise [7]2 years ago
6 0
For this question, the answer is true.
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In which group is parthenogenesis a normal event?
bezimeni [28]

Answer:

Bees

Explanation:

Parthenogenesis is a method of asexual reproduction in which an egg cell develops into a new individual without fertilization. Parthenogenesis occurs in insects, amphibians, reptiles, fish, and in some plants. Most of the organisms which reproduces through parthenogenesis, they also reproduce sexually. Parthenogenesis may be occurs by apomixis and by automixis. In apomixis, egg is produced by mitosis and results into diploid clones. In automixis egg is produced by meiosis and the haploid egg develops into diploid new individual by the duplication of chromosomes. Parthenogenesis is an adaptation which allows to reproduce in adverse environmental conditions when sexual reproduction is not possible.  

5 0
3 years ago
Each photo shows an example of weathering and erosion. Match each photo with the element that caused the weathering and erosion?
Alex17521 [72]
Boi we can't see the picture otherwise I would love to help you out dawg.
3 0
3 years ago
Read 2 more answers
Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mat
Marianna [84]

Answer:

C

Explanation:

This is a monohybrid cross between involving a gene coding for earlobe. The allele for free earlobe (F) is dominant over that of attached earlobe (f).

N.B: let F represent the gene involved.

A genotypic ratio is the ratio derived from the offsprings based on the actual genetic make-up and not based on their phenotypic appearance as in phenotypic ratio.

A homozygous individual is an individual having the same kind of alleles for a gene while a heterozygous individual is one that has two different alleles i.e. combination of the dominant and recessive allele.

The monohybrid cross is between an individual with attached earlobe (ff) i.e. homozygous recessive individual. (Note that, a recessive trait will only be expressed in a homozygous state) and a heterozygous free earlobeb individual (Ff). (See attached picture). Ff × ff

The resulting four offsprings will

be expected to have only two distinct genotypes i.e heterozygous (Ff) and homozygous recessive (ff) in an equal ratio i.e. 2:2 ~ 1:1

4 0
2 years ago
The wall of capillaries is only one cell thick. How is this related to their function?
kogti [31]
Capillaries have thin walls, only one cell thick, that allow them to effectively perform their function.
7 0
2 years ago
To calculate the relative mass of an element you need to know both the mass of the individual
marysya [2.9K]

Answer:

b

Explanation:

7 0
3 years ago
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