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Colt1911 [192]
3 years ago
14

What is autoregulation of blood flow?

Biology
1 answer:
earnstyle [38]3 years ago
3 0
A manifestation of local blood flow regulation.
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How are fungi and protists similar to plants and animals in the ecosystem?
JulijaS [17]

Explanation:

Since plants and fungi are both derived from protists, they share similar cell structures. Unlike animal cells, both plant and fungal cells are enclosed by a cell wall. ... They both also have organelles, including mitochondria, endoplasmic reticula and Golgi apparatuses, inside their cells.

5 0
3 years ago
An electrocardiogram (ECG) provides information about: Group of answer choices the pressure of blood in the heart chambers the r
MariettaO [177]

Answer:

the rhythm of heart contractions.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

An electrocardiogram (ECG) provides information about the rhythm of heart contractions.

Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.

4 0
2 years ago
If sperm and egg cells have half of the number of chromosomes found in other body cells, how do gametes form?
Pavel [41]
Cuz they combine during fertilization and since 2 halves = 1 whole, u get gametes w a full number of chromosomes
7 0
3 years ago
What can you surmise from the labeled image? The genotype is heterozygous. White petal color is a recessive trait. White petal c
lys-0071 [83]

Answer:

White petal color is a recessive trait.

Explanation:

Further explanation is posted as an attached file due to technical difficulties.

Download pdf
6 0
3 years ago
Which DNA fingering technique examines the length variation of DNA repeat sequences in human DNA?
DiKsa [7]

Answer: The question is incorrect, below is the correct question

Which DNA FINGERPRINTING technique examines the length variation of DNA repeat sequences in human DNA?

The correct answer to the question is option D

mtDNA (mitochondrial DNA) analysis

Explanation: DNA fingerprinting technique is a laboratory technique used by geneticists.it entails placing of DNA samples into wells,these wells are then placed in a slab of gels and thereafter passing a current through the gel.This is done to ascertain the uniqueness of a DNA pattern and thus be able to differentiate people of same species.

There are several methods of DNA fingerprinting as outlined in the options given with the question.

In mtDNA (mitochondrial DNA) analysis,The Genetic samples are extracted from the biological materials, these samples extracted are total genomic DNA like hair,tooth or samples of blood, Several copies of these genomic DNA are then produced using a polymerase chain reaction and flanking primers inorder to examines the length variation of DNA repeat sequences in human DNA.

5 0
3 years ago
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