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Rama09 [41]
3 years ago
6

Holdfasts and alginic acid are characteristic of which group of protists?

Biology
1 answer:
kipiarov [429]3 years ago
3 0
Answer is: brown algae.
Holdfast<span> is a </span>root <span>like structure that anchors </span>aquatic<span> organisms (in this case brown algae) </span><span>to the </span><span>substrate.
</span>Alginic acid <span>is an </span>anionic polysaccharide<span> distributed in the </span>cell walls<span> of </span>brown algae. Alginic acid with water <span>viscous </span>gum<span>. 
</span>Brown algae (Phaeophyceae) are large group of marime algae, <span>located in colder </span>Northern Hemisphere<span> waters.</span>
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The oxygen circulated by the circulatory and respiratory systems is used for what
Brut [27]

Answer:

Cellular respiration

Explanation:

Respiration is the process by which energy is made. Aerobic respiration requires oxygen.

All the other processes listed do not require oxygen to.

5 0
2 years ago
In what way are the humerus and the femur similar?
dimaraw [331]
The humerus-
A long bone of the upper forelimb. It articulates proximally with the scapula to form the soulder joint and distally with the radius and ulna to form the elbow joint.
<span>Proximally the humerus has a rounded projection known as the head. </span>

Cranially at the lateral aspect of the head is a large prominence- the greater tubercle. The lesser tubercle lies medially. Both tubercles act as a sight for muscle attachment. At the distal end of the humerus is a condyle which articulates with the radius & ulna & forms part of the elbow.

The diaphysis of the humerus is twisted.
<span>In the dog a supra condylar foramen is present- a large hole in the condyle.
</span>
The Femur-This is the thigh bone and is the largest bone in the body, it is a long bone and is similar in structure to the humerus in that it has a head, neck, shaft & lateral & medial condyles. The femoral head articulates with the acetabulum proximally to form the hip joint, lateral to the head is the greater trochanter and on the medialTh side is a lesser trochanter (for muscle attachment). At the distal end of the femur are 2 condyles that articulate with the tibia to form the stifle joint. Between the 2 condyles is the trochlear groove along which the patella can move.

Here is some information. Hope this helps ☺
3 0
3 years ago
Read 2 more answers
This is made from weakened virus particles, that cause the body to build up a defense before you get an infection.
dmitriy555 [2]

Answer:

live attenuated vaccine

Explanation:

The correct answer would be a <u>live attenuated vaccine.</u>

<em>Vaccines are made from weakened/inactivated pathogens or their toxins and when they are administered to the body, they stimulate the body's immune system to produce antibodies that tend to persist and tackle any future invasion of the body by the pathogen.</em>

Vaccines can be an inactivated ones if they are made from inactivated pathogens, <u>they can be live attenuated if they are made from a weakened or attenuated version of the pathogen</u>, or toxoid vaccine if they are made from toxins of the pathogen. Other forms of vaccines include mRNA vaccines, conjugate vaccines, and viral vector vaccines.

5 0
3 years ago
I need help please, Biology
ruslelena [56]

Answer:

sorry im not in that level

Explanation:

4 0
3 years ago
True or False: Carbon dioxide is a product of combustible fossil fuels and only comes from humans burning fossil fuels.
QveST [7]

Answer: True

Explanation: When they burn they release a lot or big amounts of carbon dioxide it releases carbon dioxide into the air

5 0
2 years ago
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