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beks73 [17]
2 years ago
11

I am found in plant cells. I am rigid, strong & stiff. I give support to the plant cell. I give the cell it's box shape

Biology
1 answer:
Kruka [31]2 years ago
3 0

Answer:

cell wall

Explanation:

if it was a animal cell it would be a cell membrane

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What measures the solar energy striking a specified area over a set period of time
MrMuchimi

Answer:

insolation

Explanation:

insolation is the incident solar radiation onto some objects

8 0
2 years ago
PLEASE HELP <br> Which word describes the speed at which the "global<br> conveyor belt" moves?
mario62 [17]

Answer:

The conveyor belt moves at much slower speeds (a few centimeters per second) than wind-driven or tidal currents (tens to hundreds of centimeters per second). It is estimated that any given cubic meter of water takes about 1,000 years to complete the journey along the global conveyor belt

6 0
2 years ago
You are given a prepared slide and are told that it is a streptobacillus. Without even looking at the slide under the microscope
Dmitriy789 [7]

Answer:

1 and 4

Explanation:

Streptobacilli are linked together in chains, the bacterium is gram positive and   the generally rod-shape. The genus could be aerobic ( required oxygen for their growth), falcultative anaerobe (in the absence of oxygen, they can switch to fermentation).

3 0
3 years ago
Summarize the effects of progesterone and estrogen
SVETLANKA909090 [29]

<u>Definition:</u>

The sex hormone  and endogenous steroid present in human and other species ' menstrual cycle, pregnancy, and embryogenesis are known as "Progesterone" while the primary sex hormone in females  responsible for the development and control of the female reproductive system and for the characteristics of secondary sex is termed as "Estrogen" or "oestrogen".

<u>Progesterone Effects:</u>

  • Progesterone has a variety of physiological effects which are exacerbated when estrogens are present for an instance in breast tissue, where estrogens permits progesterone to mediate lobuloalveolar development.
  • Progesterone has main effects on human sperm by non-genomic signals, as they move through the female tract before fertilization.
  • Progesterone is called "hormone of pregnancy" as transform the endometrium to its secretory stage for uterine implantation, decrease the maternal immune response to permit for the acceptance of the pregnancy during implantation and gestation, prevent preterm labor, inhibits lactation during pregnancy etc.

<u>Estrogen Effects:</u>

  • Effects structure of human and categorize them as male and female, while females have three kind of estrogen: Estrone (weak and found in women after menopause), Estradiol (strong and it is steroid produced by ovaries ) and Estriol (weakest and waste product after body produces estradiol).
  • It effects ovaries, vagina, Fallopian tube, uterus, cervix and mammary glands.
  • It triggers the release of an egg due to high level during halfway of cycle but decreases after ovulation.

<u>Similarities between progesterone and estrogen: </u>

Progesterone and estrogen  as such do not have similar function but work with coordination as both are need for menstrual cycle functioning and regulation. Estrogens usually travel in fluids through the bloodstream, communicate with cells in the body's various tissues, and provide a message or guidance while progesterone helps to balance pregnancy period  and to implant an egg in uterus.

4 0
3 years ago
explain how human embryonic stem cells, adult stem cells, and skin cells taken from the same person would be the same and how th
Vsevolod [243]

Answer and explanation;

-Stem cells, Adult stem cells and skin cells , have a similarities and they may also differ in a number of ways.

-A stem cell has not gone through the process of differentiation, so they have the potential to become any type of cell.

-Adult skin cells have gone through differentiation and cannot become another type of cell. Same case applies to the skin cells, they have already undergone differentiation;

-Similarity; The cells that are taken from the same person would have the same DNA.

-Difference; The skin cells and the adult stem cells have already gone through differentiation, whereas embryonic stem cells have not. The different genes that the types of cells have are turned on and off causing the differences.

7 0
3 years ago
Read 2 more answers
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