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lesya [120]
3 years ago
13

Every Cell hasA cell wallCytoplasmBoth 1 and 2

Biology
1 answer:
givi [52]3 years ago
6 0
Every cell has a cytoplasm
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A random change in the sequence of DNA is called a
lorasvet [3.4K]

Answer:

mutation

Explanation:

A mutation is a random change to genetic material. ... If a mutation occurs in a gene that results in a change to the sequence of DNA bases, then the structure of the protein that is made may also be altered. This could alter an individual's phenotype

6 0
3 years ago
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What is the most important property of water for protecting fish in a shallow pond on a hot summer day
noname [10]
Answer:  Low oxygen content.

Explanation:
There are many dangers to the survival of fish in shallow water that depend on the properties of water.
1. The oxygen content drops during the winter and also in hot weather. Fish cannot survive without enough oxygen in the water.
2. High evaporation rates can drain the pond.
3. Fortunately, water has a high thermal mass, so overheating the water to the boiling point is not an issue.

Of the three reasons given, lack of oxygen is the most critical.


3 0
3 years ago
Correctly match the following: - fibrous joint between radius and ulna - fibrous joint that unites bones of the skull - articula
topjm [15]

Answer:

- fibrous joint between radius and ulna: C. syndesmosis

- fibrous joint that unites bones of the skull: H. suture

- articulation between teeth and bone: J. gomphosis

- joint with a cavity between bones: E. synovial

- the epiphyseal plate: F. synchondrosis

- articulation between two pubic bones: A. symphysis

- permits opposition and reposition:  B. saddle  

- fibrocartilagenous fluid filled sacs outside the joint cavity: G. meniscus

- most common degenerative joint disease: D. osteoarthritis    

- movement of the sole laterally:  I. eversion  

Explanation:

The syndesmosis can be defined as a fibrous joint held together by ligaments. Sutures are fibrous joints of tissue that link the cranial bones of the skull. A gomphosis is a mobile fibrous that binds the teeth into sockets in the mandible and maxilla. Synovial joints are joints found between bones that move against each other (e.g., shoulder bones). They (synovial joints) are the most common class of joints found in the body. A symphysis is a cartilaginous, slightly movable, joint between two bones. A saddle is a synovial joint whose opposing surfaces are concave and convex, respectively. Osteoarthritis is the most common type of arthritis, this condition occurs when the protective cartilage surrounding the bones wears away over time. Finally, eversion refers to a type of movement of the foot which occurs in the auctioneering joint.

8 0
3 years ago
Rabbits, turtles, fish, humans, and whales all share certain characteristics but also differ from each other. All of these speci
Delvig [45]

<u>The levels of organisation are</u>

Domain: Eukarya

Kingdom Animalia

Phylum :Chordata

Explanation:

They all share these levels of organisation because;

<u>for  the Domain Eukarya, they have;</u>

→multi-cellular cells containing   nucleus; and  other membrane bound organelle.e.g Mitochondrial.

→their  DNA located in the   nucleus  packaged as linear chromosomes bounded by histone proteins.

→mode of reproduction which is  sexual.

They share Kingdom Animalia because;

→they have multi-cellular, specialised cells, bounded by plasma membranes.

→they have specialized  tissues, organs, and system.

→they all undergo <u>heterotrophic mode of nutrition</u> <u>as evident in the question 'that they must consume plants and animals as source of energy'</u>

<u>→they exchanged communication by nervous ssytem and </u>

<u>→ use homeostatic mechanisms to regulate water balance of the body through the kidney.</u>

<u>→Humans,Rabbits,and whales are</u><u> VIVIPAROUS; they give birth to young ones alive.</u>

→Most fishes lay eggs to reproduce, they are said to be <u>Ovoviviparous.</u>

<u>They belong to phylum Chordata because ;</u>

<u>→they  all have noto chord;</u> which serve as template for axial skeleton.

<u>dorsal hollow nerve cord </u>-template for the brain and spinal cord

<u>→pharyngeal slits- </u>templates for gill aches in bony fishes and components of inner ear in land animals.

<u>→ tail</u> length varies  in these organisms.

8 0
3 years ago
How is the fruit lab like a dichotomous key?
Kamila [148]
A dichotomous key is two paired sentences that have contrasting characteristics. That's all i know
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