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Masteriza [31]
3 years ago
14

Both euglena (eukaryote) and cyanobacteria (a prokaryote) are photosynthetic unicellular organisms found in pond water. the feat

ure that would distinguish euglena from cyanobacteria is the ________________.
Biology
1 answer:
Butoxors [25]3 years ago
7 0
<span>The feature that would distinguish euglena from cyanobacteria is the membrane-bound nucleus.</span> Also, cyanobacteria do not have flagella, while euglena does. Cyanobacteria is a prokaryotic organism and thus, doesn’t have a nucleus, but unlike heterotrophic prokaryotes, cyanobacteria have internal membranes (thylakoids).

<span>Euglena is a eukaryotic organism which contains chloroplast for the photosynthesis.</span>

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A sedimentary rock that is composed of material evaporated from seawater is describe as
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A rock that is composed of material evaporated from seawater is described as chemical.

3 0
2 years ago
A biologist discovers a new organism. What helps the biologist classify the new organism into a specific group?
olga2289 [7]
It is B, because that is how they produce their scientific name
6 0
3 years ago
In humans, hemophilia is caused by an X-linked recessive gene. A woman who is a nonbleeder - that is, she does not display the b
wariber [46]

Answer:

one normal girl

One normal boy

One carrier girl

One colour blind boy

Explanation:

Haemophilia is a sex linked feature as it is transmitted with the chromosomes determining sex.

In humans,the male has XY and the female has XX.the Y chromosome is usually genetically empty.so as mall received his Y chromosomes from his father,he cannot inherit his father's sex linked traits .but women can as they receive and X chromosomes from their fathers.so a cross between a carrier woman Cc and a normal man C result in;

XX--CC

XX--Cc

XY--C

XY--c

7 0
3 years ago
Which of the following statements best describes the role of hormones in the body? Hormones send chemical signals throughout the
il63 [147K]

Answer:

Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus elicits the release of a substance; once the substance reaches a certain level, it sends a signal that stops further release of the substance. In this way, the concentration of hormones in blood is maintained within a narrow range. For example, the anterior pituitary signals the thyroid to release thyroid hormones. Increasing levels of these hormones in the blood then give feedback to the hypothalamus and anterior pituitary to inhibit further signaling to the thyroid gland, as illustrated in Figure 18.14. There are three mechanisms by which endocrine glands are stimulated to synthesize and release hormones: humoral stimuli, hormonal stimuli, and neural stimuli.

Explanation:

Hyperthyroidism is a condition in which the thyroid gland is overactive. Hypothyroidism is a condition in which the thyroid gland is underactive. Which of the conditions are the following two patients most likely to have?

Patient A has symptoms including weight gain, cold sensitivity, low heart rate and fatigue.

Patient B has symptoms including weight loss, profuse sweating, increased heart rate and difficulty sleeping.Humoral Stimuli

The term “humoral” is derived from the term “humor,” which refers to bodily fluids such as blood. A humoral stimulus refers to the control of hormone release in response to changes in extracellular fluids such as blood or the ion concentration in the blood. For example, a rise in blood glucose levels triggers the pancreatic release of insulin. Insulin causes blood glucose levels to drop, which signals the pancreas to stop producing insulin in a negative feedback loop.

Hormonal stimuli refers to the release of a hormone in response to another hormone. A number of endocrine glands release hormones when stimulated by hormones released by other endocrine glands. For example, the hypothalamus produces hormones that stimulate the anterior portion of the pituitary gland. The anterior pituitary in turn releases hormones that regulate hormone production by other endocrine glands. The anterior pituitary releases the thyroid-stimulating hormone, which then stimulates the thyroid gland to produce the hormones T3 and T4. As blood concentrations of T3 and T4 rise, they inhibit both the pituitary and the hypothalamus in a negative feedback loop.

3 0
3 years ago
What subcomponent of universality makes explicit the understanding not only that all living things die but also that each living
shusha [124]

Answer:

The options

A. Personal mortality

B. Inevitability

C. Purposefulness

D. Organicity

The CORRECT ANSWER IS A.

A. Personal mortality

Explanation:

Universality

It as to do with the fact that all living things must gradually or at some point die. It sees Death as an all-inclusive, inevitable, and unavoidable.

A. personal mortality✔✔✔

It is the concept that death applies to oneself, that not only do all living things die but each and every living thing will surely die.

B. Inevitability❌

It is the concept that all living things must one way or the other encounter death.

C. Purposefulness❌

It has to do with death and it's purpose.

D. Organicity❌

It is the probable etiology of the inadequacy of full eyelid closure at death.

7 0
3 years ago
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